Harborfreight 3in1 Chucks?

your manual probably tells you what the threads are, right? so get a nut with the proper threads, weld on a piece of steel and then finish it on your machine -

Should be a simple turning job to machine an adaptor which fits your spindle on one side and the new chuck on the other. Try ENCO for various chucks

That's why you bought it, right? Hey, it's a LATHE. Make your own back plates. First thing I did waay back when I bought my HF 3in1. See:

William L> I've got a HF 44142 3in1 multi-machine which came with the stock 3 jaw

Bill, this solution was discussed in the Chaski Home Machinist 3-in-1 Metalworking Machines forum a while ago. There may have been other recommendations, which should be fairly easy to locate by searching that specific 3in1 forum. There are numerous 3in1 machine owners that participate in the Chaski forum that have performed many upgrades and improvements to their machines, and are very helpful and experienced with these machines.

I expect that the HF spindle is the flanged type, and utilizes bolts to retain the chuck.

Here's what one participant said regarding an adaptor plate for fitting other chucks to his HF machine.

If you need a four jaw chuck with a large enough pass through hole to use the existing HF 44142 pass through hole, use the following:

The Chaski forums cover many metalworking and machining topics that are regularly discussed here in the RCM NG, and with no static about off-topic commentary.

WB ......... metalworking projects

Thanks so much. This is a big help!

Bill Longyard